I am Slaying Demons in the Zongman

Beichen Xiao travels to the world of a manga. He has a sister, a house, and his parents are both orphaned. He's a typical protagonist. Just when he thinks he can live a peaceful life, the neighboring Higurashi Shrine, along with Yotsuya Miko, Mizuka Shizuka, Mizaki Mei, and Tomie, shatter his illusions of a better life. Beichen Xiao declares that he no longer understands this world. Faced with the demons and monsters outside the shrine that lust after him, he decides: "If you can't defeat them, join Long Jiantong and start!"